Answer:
13.9 sorry if I'm wrong just trying to help.
Step-by-step explanation:
first plug in your numbers
a*2+ b*2= c*2
12*12= 144
7*7=49
144+49= 193
square root of 193: 13.89244399
rounded to nearest tenth is 13.9
Sometime you have to convert medicine amounts or maybe how much you have to cut something in surgery that you have to convert you also might use percentages figuring out the percent of something to go in a specific medication
Answer:
x=-1,y=1
Step-by-step explanation:
x+y=0
x-y+2=0
Therefore 0=x+y
x-y+2=x+y
2y=2
y=1
x+1=0
x=-1
